It is a well-known fact that most of our movements have the very same origin – our natural, inborn locomotion. The only exclusion might be fine motor skills like writing, piano and most other musical instrument playing, drawing with a pencil and so on.
Humans' bipedal gait has a lot in common with the quadrupedal gait of the great majority of mammals. During walking or running our arms actually simulate the forward limbs movements of quadrupeds while they walk or run, even though our arms assist us in keeping balance and rotating the torso and don’t participate directly in the propulsion of our body.
Therefore, we have to expect that when considering Martial Arts movement our punches would also have a lot in common with quadrupeds' manner of locomotion or movement in space like walking or running.
